1.
Positive semi-definite matrices are positive definite if and only if they are nonsingular.
正半定矩阵是正定的，当且仅当它们是非奇异矩阵。
2.
Then A is positive semidefinite, negative definite and negative semidefinite.
则A是半正定，负定，半负定的。
3.
A positive-definition method for un-damped linear positive semi-definite vibration system
线性无阻尼半正定振动系统简明正定化方法
4.
On the Metapositive (Semi) Definite Solutions of Linear Equation AXB=C;
矩阵方程AXB=C的亚(半)正定解
5.
The Bisymmetric Positive Semidefinite Solutions of Matrix Equation A~TXA=F;
矩阵方程A~TXA=F的双对称半正定解
6.
An Inequality For Semipositive Definite Hermite s Matrices;
半正定Hermite矩阵的一个不等式
7.
Symmetric Semipositive Definite Solutions to Matrix Equation AXA~т+BYB~т=C;
矩阵方程AXA~T+BYB~T=C的对称半正定解
8.
The Trace of A Positive Semidefinite Hermite Matrix and Its Application;
半正定Hermite矩阵的迹及其应用
9.
CPC Algorithm for Semidefinite Monotone Variational Inequalities
半正定单调变分不等式的CPC算法
10.
The Isolation of Generalized Minkowski′s Inequality for Semi-metapositive Definite Matrix
亚半正定矩阵的广义Minkowski不等式的隔离
11.
Estimates for Elgenvalues of Product of Positive Semidefinite Hermitian Matrices
半正定Hermite矩阵之积的特征值估计
12.
The Positive Semi-definite of Gram Matrix and it's Application
格拉姆(Gram)矩阵的半正定性及其应用
13.
On the Matrix Inequalitiy for the Hadamard Product of Positive Semidefinite Matrices
关于半正定矩阵Hadamard积的矩阵不等式
14.
On Partial Ordering of Pseudo-Schur Complement for Positive Semidefinite Block Matrices
半正定分块矩阵的块Pseudo-Schur补的偏序
15.
Existence Theory for Single and Multiple Solutions to Nonlinear Singular Semi-Positone Boundary Value Problems;
奇异半正定非线性边值问题的正解及多个正解的存在性
16.
Connections Between Euclidian Distance Matrix and Positive Semidefinite Matrix
欧几里得距离矩阵与半正定矩阵的关系
17.
Error Estimate to the Simplified Iteration for the PositiveSemi-Definite,Compact and Self-Adjoint Operator Equation
自共轭半正定紧算子方程简化迭代的误差估计
18.
Study of the Predictor-Corrector Algorithms for Linear Programming and Semi-definite Programming;
预估—校正算法在线性和半定规划中的讨论